Mercurial > hg > orthanc
annotate OrthancServer/ServerContext.cpp @ 816:2f63c225c4c0
readme Web applications
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 08 May 2014 16:08:17 +0200 |
parents | 401a9633e492 |
children | a811bdf8b8eb |
rev | line source |
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224 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
224 | 4 * Belgium |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU General Public License as | |
8 * published by the Free Software Foundation, either version 3 of the | |
9 * License, or (at your option) any later version. | |
10 * | |
11 * In addition, as a special exception, the copyright holders of this | |
12 * program give permission to link the code of its release with the | |
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
14 * that use the same license as the "OpenSSL" library), and distribute | |
15 * the linked executables. You must obey the GNU General Public License | |
16 * in all respects for all of the code used other than "OpenSSL". If you | |
17 * modify file(s) with this exception, you may extend this exception to | |
18 * your version of the file(s), but you are not obligated to do so. If | |
19 * you do not wish to do so, delete this exception statement from your | |
20 * version. If you delete this exception statement from all source files | |
21 * in the program, then also delete it here. | |
22 * | |
23 * This program is distributed in the hope that it will be useful, but | |
24 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
26 * General Public License for more details. | |
27 * | |
28 * You should have received a copy of the GNU General Public License | |
29 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
30 **/ | |
31 | |
32 | |
33 #include "ServerContext.h" | |
34 | |
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35 #include "../Core/HttpServer/FilesystemHttpSender.h" |
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36 #include "../Core/Lua/LuaFunctionCall.h" |
795 | 37 #include "FromDcmtkBridge.h" |
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38 #include "ServerToolbox.h" |
771 | 39 #include "OrthancInitialization.h" |
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40 |
224 | 41 #include <glog/logging.h> |
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42 #include <EmbeddedResources.h> |
794 | 43 #include <dcmtk/dcmdata/dcfilefo.h> |
224 | 44 |
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45 #define ENABLE_DICOM_CACHE 1 |
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46 |
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47 static const char* RECEIVED_INSTANCE_FILTER = "ReceivedInstanceFilter"; |
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48 |
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49 static const size_t DICOM_CACHE_SIZE = 2; |
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50 |
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51 /** |
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52 * IMPORTANT: We make the assumption that the same instance of |
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53 * FileStorage can be accessed from multiple threads. This seems OK |
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54 * since the filesystem implements the required locking mechanisms, |
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55 * but maybe a read-writer lock on the "FileStorage" could be |
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56 * useful. Conversely, "ServerIndex" already implements mutex-based |
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57 * locking. |
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58 **/ |
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59 |
224 | 60 namespace Orthanc |
61 { | |
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62 ServerContext::ServerContext(const boost::filesystem::path& storagePath, |
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63 const boost::filesystem::path& indexPath) : |
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64 storage_(storagePath.string()), |
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65 index_(*this, indexPath.string()), |
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66 accessor_(storage_), |
656 | 67 compressionEnabled_(false), |
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68 provider_(*this), |
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69 dicomCache_(provider_, DICOM_CACHE_SIZE) |
224 | 70 { |
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71 scu_.SetLocalApplicationEntityTitle(Configuration::GetGlobalStringParameter("DicomAet", "ORTHANC")); |
774 | 72 //scu_.SetMillisecondsBeforeClose(1); // The connection is always released |
73 | |
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74 lua_.Execute(Orthanc::EmbeddedResources::LUA_TOOLBOX); |
224 | 75 } |
76 | |
236 | 77 void ServerContext::SetCompressionEnabled(bool enabled) |
78 { | |
79 if (enabled) | |
80 LOG(WARNING) << "Disk compression is enabled"; | |
81 else | |
82 LOG(WARNING) << "Disk compression is disabled"; | |
83 | |
84 compressionEnabled_ = enabled; | |
85 } | |
86 | |
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87 void ServerContext::RemoveFile(const std::string& fileUuid) |
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88 { |
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89 storage_.Remove(fileUuid); |
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90 } |
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91 |
304 | 92 StoreStatus ServerContext::Store(const char* dicomInstance, |
224 | 93 size_t dicomSize, |
94 const DicomMap& dicomSummary, | |
95 const Json::Value& dicomJson, | |
96 const std::string& remoteAet) | |
97 { | |
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98 // Test if the instance must be filtered out |
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99 if (lua_.IsExistingFunction(RECEIVED_INSTANCE_FILTER)) |
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100 { |
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101 Json::Value simplified; |
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102 SimplifyTags(simplified, dicomJson); |
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103 |
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104 LuaFunctionCall call(lua_, RECEIVED_INSTANCE_FILTER); |
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105 call.PushJSON(simplified); |
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106 call.PushString(remoteAet); |
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107 |
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108 if (!call.ExecutePredicate()) |
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109 { |
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110 LOG(INFO) << "An incoming instance has been discarded by the filter"; |
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111 return StoreStatus_FilteredOut; |
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112 } |
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113 } |
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114 |
236 | 115 if (compressionEnabled_) |
116 { | |
117 accessor_.SetCompressionForNextOperations(CompressionType_Zlib); | |
118 } | |
119 else | |
120 { | |
121 accessor_.SetCompressionForNextOperations(CompressionType_None); | |
122 } | |
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123 |
304 | 124 FileInfo dicomInfo = accessor_.Write(dicomInstance, dicomSize, FileContentType_Dicom); |
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125 FileInfo jsonInfo = accessor_.Write(dicomJson.toStyledString(), FileContentType_DicomAsJson); |
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126 |
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127 ServerIndex::Attachments attachments; |
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128 attachments.push_back(dicomInfo); |
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129 attachments.push_back(jsonInfo); |
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130 |
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131 StoreStatus status = index_.Store(dicomSummary, attachments, remoteAet); |
224 | 132 |
133 if (status != StoreStatus_Success) | |
134 { | |
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135 storage_.Remove(dicomInfo.GetUuid()); |
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136 storage_.Remove(jsonInfo.GetUuid()); |
224 | 137 } |
138 | |
139 switch (status) | |
140 { | |
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141 case StoreStatus_Success: |
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142 LOG(INFO) << "New instance stored"; |
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143 break; |
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144 |
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145 case StoreStatus_AlreadyStored: |
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146 LOG(INFO) << "Already stored"; |
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147 break; |
224 | 148 |
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149 case StoreStatus_Failure: |
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150 LOG(ERROR) << "Store failure"; |
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151 break; |
224 | 152 |
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153 default: |
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154 // This should never happen |
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155 break; |
224 | 156 } |
157 | |
158 return status; | |
159 } | |
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160 |
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161 |
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162 void ServerContext::AnswerDicomFile(RestApiOutput& output, |
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163 const std::string& instancePublicId, |
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164 FileContentType content) |
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165 { |
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166 FileInfo attachment; |
236 | 167 if (!index_.LookupAttachment(attachment, instancePublicId, content)) |
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168 { |
236 | 169 throw OrthancException(ErrorCode_InternalError); |
170 } | |
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171 |
236 | 172 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType()); |
320 | 173 |
236 | 174 std::auto_ptr<HttpFileSender> sender(accessor_.ConstructHttpFileSender(attachment.GetUuid())); |
320 | 175 sender->SetContentType("application/dicom"); |
176 sender->SetDownloadFilename(instancePublicId + ".dcm"); | |
236 | 177 output.AnswerFile(*sender); |
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178 } |
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179 |
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180 |
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181 void ServerContext::ReadJson(Json::Value& result, |
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182 const std::string& instancePublicId) |
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183 { |
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184 std::string s; |
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185 ReadFile(s, instancePublicId, FileContentType_DicomAsJson); |
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186 |
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187 Json::Reader reader; |
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188 if (!reader.parse(s, result)) |
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189 { |
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190 throw OrthancException("Corrupted JSON file"); |
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191 } |
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192 } |
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193 |
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194 |
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195 void ServerContext::ReadFile(std::string& result, |
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196 const std::string& instancePublicId, |
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197 FileContentType content, |
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198 bool uncompressIfNeeded) |
227
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199 { |
232
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200 FileInfo attachment; |
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201 if (!index_.LookupAttachment(attachment, instancePublicId, content)) |
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202 { |
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203 throw OrthancException(ErrorCode_InternalError); |
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204 } |
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205 |
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206 if (uncompressIfNeeded) |
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207 { |
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208 accessor_.SetCompressionForNextOperations(attachment.GetCompressionType()); |
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209 } |
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210 else |
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211 { |
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212 accessor_.SetCompressionForNextOperations(CompressionType_None); |
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213 } |
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214 |
232
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215 accessor_.Read(result, attachment.GetUuid()); |
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216 } |
285
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217 |
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218 |
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219 IDynamicObject* ServerContext::DicomCacheProvider::Provide(const std::string& instancePublicId) |
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220 { |
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221 std::string content; |
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222 context_.ReadFile(content, instancePublicId, FileContentType_Dicom); |
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223 return new ParsedDicomFile(content); |
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224 } |
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225 |
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226 |
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227 ServerContext::DicomCacheLocker::DicomCacheLocker(ServerContext& that, |
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228 const std::string& instancePublicId) : |
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229 that_(that) |
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230 { |
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231 #if ENABLE_DICOM_CACHE == 0 |
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232 static std::auto_ptr<IDynamicObject> p; |
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233 p.reset(provider_.Provide(instancePublicId)); |
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234 dicom_ = dynamic_cast<ParsedDicomFile*>(p.get()); |
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235 #else |
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236 that_.dicomCacheMutex_.lock(); |
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237 dicom_ = &dynamic_cast<ParsedDicomFile&>(that_.dicomCache_.Access(instancePublicId)); |
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238 #endif |
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239 } |
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240 |
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241 |
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242 ServerContext::DicomCacheLocker::~DicomCacheLocker() |
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243 { |
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244 #if ENABLE_DICOM_CACHE == 0 |
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245 #else |
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246 that_.dicomCacheMutex_.unlock(); |
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247 #endif |
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248 } |
304 | 249 |
250 | |
792 | 251 static DcmFileFormat& GetDicom(ParsedDicomFile& file) |
252 { | |
253 return *reinterpret_cast<DcmFileFormat*>(file.GetDcmtkObject()); | |
254 } | |
255 | |
256 | |
304 | 257 StoreStatus ServerContext::Store(std::string& resultPublicId, |
791 | 258 ParsedDicomFile& dicomInstance, |
304 | 259 const char* dicomBuffer, |
260 size_t dicomSize) | |
261 { | |
262 DicomMap dicomSummary; | |
792 | 263 FromDcmtkBridge::Convert(dicomSummary, *GetDicom(dicomInstance).getDataset()); |
304 | 264 |
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265 try |
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266 { |
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267 DicomInstanceHasher hasher(dicomSummary); |
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268 resultPublicId = hasher.HashInstance(); |
304 | 269 |
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270 Json::Value dicomJson; |
792 | 271 FromDcmtkBridge::ToJson(dicomJson, *GetDicom(dicomInstance).getDataset()); |
304 | 272 |
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273 StoreStatus status = StoreStatus_Failure; |
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274 if (dicomSize > 0) |
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275 { |
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276 status = Store(dicomBuffer, dicomSize, dicomSummary, dicomJson, ""); |
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277 } |
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278 |
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279 return status; |
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280 } |
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281 catch (OrthancException& e) |
304 | 282 { |
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283 if (e.GetErrorCode() == ErrorCode_InexistentTag) |
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284 { |
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285 LogMissingRequiredTag(dicomSummary); |
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286 } |
304 | 287 |
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288 throw e; |
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289 } |
304 | 290 } |
291 | |
292 | |
293 StoreStatus ServerContext::Store(std::string& resultPublicId, | |
791 | 294 ParsedDicomFile& dicomInstance) |
304 | 295 { |
296 std::string buffer; | |
792 | 297 if (!FromDcmtkBridge::SaveToMemoryBuffer(buffer, GetDicom(dicomInstance).getDataset())) |
304 | 298 { |
299 throw OrthancException(ErrorCode_InternalError); | |
300 } | |
301 | |
302 if (buffer.size() == 0) | |
303 return Store(resultPublicId, dicomInstance, NULL, 0); | |
304 else | |
305 return Store(resultPublicId, dicomInstance, &buffer[0], buffer.size()); | |
306 } | |
307 | |
308 | |
309 StoreStatus ServerContext::Store(std::string& resultPublicId, | |
310 const char* dicomBuffer, | |
311 size_t dicomSize) | |
312 { | |
313 ParsedDicomFile dicom(dicomBuffer, dicomSize); | |
791 | 314 return Store(resultPublicId, dicom, dicomBuffer, dicomSize); |
304 | 315 } |
316 | |
791 | 317 |
318 StoreStatus ServerContext::Store(std::string& resultPublicId, | |
319 const std::string& dicomContent) | |
320 { | |
321 if (dicomContent.size() == 0) | |
322 { | |
323 return Store(resultPublicId, NULL, 0); | |
324 } | |
325 else | |
326 { | |
327 return Store(resultPublicId, &dicomContent[0], dicomContent.size()); | |
328 } | |
329 } | |
330 | |
331 | |
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332 void ServerContext::SetStoreMD5ForAttachments(bool storeMD5) |
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333 { |
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334 LOG(INFO) << "Storing MD5 for attachments: " << (storeMD5 ? "yes" : "no"); |
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335 accessor_.SetStoreMD5(storeMD5); |
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336 } |
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337 |
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338 |
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339 bool ServerContext::AddAttachment(const std::string& resourceId, |
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340 FileContentType attachmentType, |
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341 const void* data, |
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342 size_t size) |
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343 { |
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344 LOG(INFO) << "Adding attachment " << EnumerationToString(attachmentType) << " to resource " << resourceId; |
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345 |
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346 if (compressionEnabled_) |
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347 { |
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348 accessor_.SetCompressionForNextOperations(CompressionType_Zlib); |
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349 } |
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350 else |
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351 { |
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352 accessor_.SetCompressionForNextOperations(CompressionType_None); |
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353 } |
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354 |
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355 FileInfo info = accessor_.Write(data, size, attachmentType); |
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356 StoreStatus status = index_.AddAttachment(info, resourceId); |
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357 |
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358 if (status != StoreStatus_Success) |
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359 { |
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360 storage_.Remove(info.GetUuid()); |
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361 return false; |
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362 } |
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363 else |
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364 { |
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365 return true; |
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
697
diff
changeset
|
366 } |
2929e17f8447
add attachments to resources
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
697
diff
changeset
|
367 } |
224 | 368 } |